Download or read book Engineered Microneedles for Transcutaneous Vaccine Delivery written by Peter Charles DeMuth and published by . This book was released on 2013 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Immunization is a powerful approach for the prevention and control of infectious disease, however despite the successes of modem vaccine development, there remain several notable obstacles for the advancement of vaccine-mediated improvements in global healthcare. Many of the current limitations in vaccine availability and administration are the result of obligate needle-based delivery, which in addition to contributing to reduced speed, ease, and compliance in administration, has been shown to contribute to reduced overall safety due to needle re-use and needle-based injuries. Needle-based vaccine delivery to immunologically passive tissues such as muscle may limit efficacy, thus motivating the targeting of more inherently potent immune-competent sites. These inherent limitations of needle-based vaccination on global health have led to a strong impetus to develop needle-free vaccination strategies which have the potential to improve vaccine efficacy and availability, enhance the ease, speed, and safety of vaccine administration, and reduce vaccination associated costs world-wide. Here we present the design and preclinical testing of several parallel materials strategies for the noninvasive delivery of subunit vaccines to the skin. We have utilized laser ablative micro-molding of poly(dimethylsiloxane) to generate bio resorbable poly(lactide-co-glycolide) micro-structured skin patches bearing -100 micron-scale needles arrayed across their surface. Upon topical application, these 'microneedle arrays' are able to safely, and painlessly insert into the immune-competent epidermal skin layers to generate microscopic conduits through which otherwise impermeant vaccines and therapeutics are able to passage into the body. We have leveraged this approach in combination with layer-by-layer (LbL) directed assembly to generate vaccine-loaded conformal coatings on the surface of these microneedle arrays, which are then delivered into the skin through topical patch application. The construction of coatings containing antigen-expressing plasmid DNA (pDNA), together with immune-stimulatory RNA, and degradable cationic polymers provided tunable control over vaccine dosage, rapid and effective vaccine delivery in murine and primate skin models, and potent immunogenicity against a model HIV antigen in mice. In this case, DNA vaccine delivery was able to elicit strong functional CD8' T cell and humoral responses matching or exceeding the potency of in vivo electroporation, currently the most promising approach for clinical DNA delivery in humans. Further efforts have explored the use of LbL for encapsulation and delivery of soluble and particulate protein subunit vaccines, giving enhanced generation of diverse and potent humoral responses in mice. In other work, we have developed an approach enabling rapid delivery of micron-scale degradable polymer matrices or hydrogel depots using dissolvable composite microneedle structures for the delivery of vaccines with programmable kinetics. These efforts have demonstrated the potential of persistent vaccine release on tuning immune potency following non-invasive microneedle delivery, including induction of potent effector and memory CD8* T cell responses and more powerful and diverse antigen-specific humoral responses. Finally, we have developed an approach for simple loading and delivery of clinically advanced recombinant adenoviral vaccine vectors from sugar-glass coatings on bioresorbable microneedles. Formulation in microneedle coatings improved vaccine stability at room temperature and preclinical testing of these vaccine patches in mice and nonhuman primates demonstrated equivalent immunogenicity compared to parenteral injection, eliciting strong systemic and disseminated mucosal CD8' and CD4* T cell responses to a model HIV antigen. These cellular responses were correlated with a similarly potent systemic and mucosal humoral response, together suggesting the utility of this approach for non-invasive adenoviral immunization in a model close to humans. Together these results strongly demonstrate the potential of materials engineering strategies for the effective formulation, delivery, and release of recombinant vaccines by microneedle patches targeting the skin. In addition to the significant practical advantages enabled by microneedle delivery including improved safety, convenience, and storage, we have shown that advanced formulation strategies paired with controlled release are able to initiate humoral and cellular adaptive immunity more potently than possible through parenteral injection. Comprehensive tests in both mice and primates have suggested that these principles may be broadly applied to enhance various recombinant vaccination strategies potentially targeting numerous disease targets. Finally, initial tests performed in nonhuman primates have indicated the promise of engineered microneedle approaches for successful translation to humans. Overall, these findings provide a strong basis for the continued development of similar vaccination strategies for the comprehensive transformation of conventional vaccination enabling significant vaccine-mediated improvements in global health.
Download or read book Microneedles for Drug and Vaccine Delivery and Patient Monitoring written by Ryan F. Donnelly and published by John Wiley & Sons. This book was released on 2018-08-20 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of microneedles for delivering and monitoring patient drugs and vaccines Microneedles are an incredibly active research area and have the potential to revolutionize the way many medicines and vaccines are delivered. This comprehensive research book covers the major aspects relating to the use of microneedle arrays in enhancing both transdermal and intradermal drug delivery and provides a sound background to the use of microneedle arrays in enhanced delivery applications. Beginning with a history of the field and the various methods employed to produce microneedles from different materials, Microneedles for Drug and Vaccine Delivery and Patient Monitoring discusses the penetration of the stratum corneum by microneedles and the importance of application method and force and microneedle geometry (height, shape, inter-needle spacing). Transdermal and intradermal delivery research using microneedles is comprehensively and critically reviewed, focusing on the outcomes of in vivo animal and human studies. The book describes the important topics of safety and patient acceptability studies carried out to date. It also covers in detail the growing area for microneedle use in the monitoring of interstitial fluid contents. Finally, it reviews translational and regulatory developments in the microneedles field and describes the work ongoing in industry. The only book currently available on microneedles Filled with tables, graphs, and black and white images (photographs, micrographs) Authored by four experts in pharmaceutics Microneedles for Drug and Vaccine Delivery and Patient Monitoring is an ideal source for researchers in industry and academia working on drug delivery and transdermal delivery in particular, as well as for advanced students in pharmacy and pharmaceutical sciences.
Download or read book Evaluation of Polyelectrolyte Multilayer Thin film Coated Microneedle Arrays for Transcutaneous Vaccine Delivery written by Peter Waitak Fung and published by . This book was released on 2011 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The skin is an ideal organ for the safe and convenient delivery of vaccines, small molecules, and other biologics. Members of the Irvine and Hammond groups have developed a polyelectrolyte multilayer thin film-coated microneedle platform that can achieve simultaneous DNA and nanoparticle delivery. This delivery platform has the advantage of direct delivery of DNA or polymer nanoparticles to immune-active cells at the interface between the dermis and epidermis, enhancing uptake of the delivered cargo by resident immune cells. Ideal for the delivery of DNA vaccines, this platform aims to bridge the gap in the lack of efficient delivery platforms hampering the effectiveness of DNA vaccines. The ability to co-deliver polymer nanoparticles can serve as a conduit for delivering immune stimulating adjuvants or other drugs for therapeutic applications. An overview of current vaccine and delivery system research is presented. Market factors for the commercialization of the polyelectrolyte multilayer thin film-coated microneedle delivery platform are considered along with the risk factors in bringing this invention to market. An assessment of the intellectual property surrounding the platform is performed and a preliminary market entry strategy is developed for minimizing the risks commercialization.
Download or read book Mechanistic Studies on Transcutaneous Subunit Vaccine Delivery written by Suzanne Marleen Bal and published by . This book was released on 2011 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering of Antigen saving Dissolving Microneedles for Intradermal Vaccine Delivery written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Microsystems for Pharmatechnology written by Andreas Dietzel and published by Springer. This book was released on 2016-01-22 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive, state-of-the-art review of microfluidic approaches and applications in pharmatechnology. It is appropriate for students with an interdisciplinary interest in both the pharmaceutical and engineering fields, as well as process developers and scientists in the pharmaceutical industry. The authors cover new and advanced technologies for screening, production by micro reaction technology and micro bioreactors, small-scale processing of drug formulations, and drug delivery that will meet the need for fast and effective screening methods for drugs in different formulations, as well as the production of drugs in very small volumes. Readers will find detailed chapters on the materials and techniques for fabrication of microfluidic devices, microbioreactors, microsystems for emulsification, on-chip fabrication of drug delivery systems, respiratory drug delivery and delivery through microneedles, organs-on-chip, and more.
Download or read book Minicircle and Miniplasmid DNA Vectors written by Martin Schleef and published by John Wiley & Sons. This book was released on 2013-02-14 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first title on the topic provides complete coverage, including the molecular basis, production and possible biomedical applications. Written by the most prominent academic researchers in the field as well as by researchers at one of the world's leading companies in industrial production of minicircle DNA, this practical book is aimed at everyone who is directly or indirectly involved in the development of gene therapies.
Download or read book Microneedles written by Hiep Xuan Nguyen and published by CRC Press. This book was released on 2023-07-04 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The microneedle field has been expanding exponentially with innovative designs and various applications, thus capturing the interest of academic industry and regulatory sectors. Microneedles: The Future of Drug Delivery equips readers with a comprehensive understanding of microneedles: from percutaneous absorption to microneedles production, characterization, applications in drug delivery and diagnosis, to practical perspectives on the development, manufacturing, regulatory issues, and commercialization of microneedles. This book is written by a single author and thus provides complex information in a simple, elegant, and cohesive style. The book is intended for graduate students, researchers, scientists, and engineers working in the pharmaceutical, medical, cosmeceutical, and biotechnology industry.
Download or read book Transdermal Drug Delivery written by Kevin Ita and published by Academic Press. This book was released on 2020-06-12 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transdermal Drug Delivery: Concepts and Application provides comprehensive background knowledge and documents the most recent advances made in the field of transdermal drug delivery. It provides comprehensive and updated information regarding most technologies and formulation strategies used for transdermal drug delivery. There has been recent growth in the number of research articles, reviews, and other types of publications in the field of transdermal drug delivery. Research in this area is active both in the academic and industry settings. Ironically, only about 40 transdermal products with distinct active pharmaceutical ingredients are in the market indicating that more needs to be done to chronicle recent advances made in this area and to elucidate the mechanisms involved. This book will be helpful to researchers in the pharmaceutical and biotechnological industries as well as academics and graduate students working in the field of transdermal drug delivery and professionals working in the field of regulatory affairs focusing on topical and transdermal drug delivery systems. Researchers in the cosmetic and cosmeceutical industries, as well as those in chemical and biological engineering, will also find this book useful. - Captures the most recent advancements and challenges in the field of transdermal drug delivery - Covers both passive and active transdermal drug delivery strategies - Explores a selection of state-of-the-art transdermal drug delivery systems
Download or read book Design and Applications of Microneedles in Drug Delivery and Therapeutics written by Prashant Kesharwani and published by Elsevier. This book was released on 2024-06-28 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microneedles in Drug Delivery and Therapeutics details the design, characterization and applications of this novel drug delivery system.Microneedles offer several advantages over traditional oral and parenteral approaches, due to their ability to be fabricated and altered in shape, size and material type, matched to specific treatment needs.This book covers the materials selection, design and fabrication approaches, and clinical translation of microneedles for a range of therapeutic applications, including: cancer therapy, gene and vaccine delivery, wound healing and more. Microneedles in Drug Delivery and Therapeutics is a forward-thinking resource for those working in the development of materials and devices for novel drug delivery. - Introduces the reader to skin anatomy and materials development in regard to microneedles as smart carriers for drug delivery, offering an interdisciplinary approach that will appeal to a wide audience - Covers a broad range of therapeutic applications, from ocular diseases and photodynamic therapy to sensing and cancer treatment - Provides an overview of the materials, design, fabrication, clinical translation, commercial aspects of microneedle development, and their applications in drug delivery
Download or read book Transdermal and Intradermal Delivery of Therapeutic Agents written by Ajay K Banga and published by CRC Press. This book was released on 2011-05-16 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Skin, once thought to be an impenetrable barrier, is an extremely active organ capable of interacting with its environment. Advancements in science combined with the need for diverse drug delivery modalities have introduced a variety of transdermal and intradermal products for existing drugs at a fraction of the cost of new drug development. Commer
Download or read book Engineered Biomaterials Progress And Prospects written by P A Hassan and published by World Scientific. This book was released on 2023-08-02 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineered Biomaterials: Progress and Prospects presents state-of-the-art developments in the area of biomaterials research exemplified by experts in the fields of tissue engineering, wound healing, bio-diagnostics, novel therapeutics and advanced drug delivery systems.It provides a comprehensive account of preparation, characterisation, properties, processing, biological and clinical evaluation of a large variety of materials for specific biomedical applications. Basic concepts related to wound healing, tissue engineering and drug delivery systems, and the principal role played by macro, micro and nano scaled structures in biomaterials are presented in a clear manner. Developments in the area of conventional and advanced wound care strategies, materials for periodontal therapeutics, in-situ gelling tissue adhesives, biodegradable composites etc are illustrated in a lucid manner. Advanced processing techniques explored for the fabrication of micro-needles for vaccine delivery, 3D printing of personalized pharmaceuticals, bio-resorbable coatings, metallosurfactants and surface engineering of nanosystems are depicted in a straightforward and reasonable way.This book also discusses various advanced therapeutic and diagnostic systems such as magnetic nanoparticle based hyperthermia and their surface functionalization techniques. Lipid-based nano delivery systems for psoriasis, irritable bowel syndrome and pain management, polyrotaxane polymers, wearable devices for sensing etc are also depicted in this book. The contents are designed in a manner that will be highly suited for academic researchers, clinicians and industrialists who wish to explore in the versatile field of biomaterials as it contains a wealth of valuable information that will be equally useful to both beginners as well as established researchers.
Download or read book Microneedle mediated Transdermal and Intradermal Drug Delivery written by Ryan F. Donnelly and published by John Wiley & Sons. This book was released on 2012-01-17 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microneedles can be used for delivery of a wide range of drug substances for practically any medical condition and present a real opportunity for vaccines and medicines that are unsuitable for oral administration or conventional patch delivery. Microneedle-mediated Transdermal and Intradermal Drug Delivery covers the major aspects relating to the use of microneedle arrays in enhancing drug delivery applications. It provides an overview of the various methods employed to design and produce microneedles, from the different materials involved to the importance of application methods. It carefully and critically reviews ongoing transdermal and intradermal delivery research using microneedles and includes the outcomes of in vivo animal and human studies. Importantly, it also discusses the safety and patient acceptability studies carried out to date. Finally, the book reviews the recent patents in microneedle research and describes the ongoing developments within industry that will determine the future of microneedle-mediated transdermal and intradermal drug delivery. By an expert author team with practical experience in the design and development of drug delivery systems this is the only text that provides a comprehensive review of microneedle research in transdermal and intradermal drug delivery.
Download or read book Drug Delivery Approaches written by Bret Berner and published by John Wiley & Sons. This book was released on 2021-08-31 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore this comprehensive discussion of the application of physiologically- and physicochemical-based models to guide drug delivery edited by leading experts in the field Drug Delivery Approaches: Perspectives from Pharmacokinetics and Pharmacodynamics delivers a thorough discussion of drug delivery options to achieve target profiles and approaches as defined by physical and pharmacokinetic models. The book offers an overview of drug absorption and physiological models, chapters on oral delivery routes with a focus on both PBPK and multiple dosage form options. It also provides an explanation of the pharmacokinetics of the formulation of drugs delivered by systemic transdermal routes. The distinguished editors have included practical and accessible resources that address the biological and delivery approaches to pulmonary and mucosal delivery of drugs. Emergency care settings are also described, with explorations of the relationship between parenteral infusion profiles and PK/PD. The future of drug delivery is addressed via discussions of virtual experiments to elucidate mechanisms and approaches to drug delivery and personalized medicine. Readers will also benefit from the inclusion of: A thorough introduction to the utility of mathematical models in drug development and delivery An exploration of the techniques and applications of physiologically based models to drug delivery Discussions of oral delivery and pharmacokinetic models and oral site-directed delivery A review of integrated transdermal delivery and pharmacokinetics in development An examination of virtual experiment methods for integrating pharmacokinetic, pharmacodynamic, and drug delivery mechanisms Alternative endpoints to pharmacokinetics for topical delivery Perfect for researchers, industrial scientists, graduate students, and postdoctoral students in the area of pharmaceutical science and engineering, Drug Delivery Approaches: Perspectives from Pharmacokinetics and Pharmacodynamics will also earn a place in the libraries of formulators, pharmacokineticists, and clinical pharmacologists.
Download or read book Intradermal Immunization written by Marcel B.M. Teunissen and published by Springer Science & Business Media. This book was released on 2011-09-15 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of Current Topics in Microbiology and Immunology covers diverse topics related to intradermal immunization. The chapters highlight the effectiveness of intradermal immunization in experimental animal models or in clinical practice, all supporting the view that intradermal immunization is at least as good as other immunization routes. Keeping in mind that current vaccines are not specially designed for intradermal immunization, but show comparable efficiency even at reduced dosages, this underlines the great potential for the skin as a vaccination site. Hopefully, the overview in this volume will encourage vaccine designers to focus on this promising immunization route, and in addition, to inspire them to develop vaccines that are especially optimized for intradermal immunization.
Download or read book Topical and Transdermal Drug Delivery written by Heather A. E. Benson and published by John Wiley & Sons. This book was released on 2012-02-03 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical drug development approaches presented by leading experts Designed to support the development of new, effective therapeutics, Topical and Transdermal Drug Delivery: Principles and Practice explains the principles underlying the field and then demonstrates how these principles are put into practice in the design and development of new drug products. Drawing together and reviewing the latest research findings, the book focuses on practical, tested, and proven approaches that are backed by industry case studies and the authors' firsthand experience. Moreover, the book emphasizes the mechanistic information that is essential for successful drug product development. Topical and Transdermal Drug Delivery: Principles and Practice is divided into two parts: Part One, Current Science, Skin Permeation, and Enhancement Approaches, offers readers a fundamental understanding of the underlying science in the field. It describes the principles and techniques needed to successfully perform experimental approaches, covering such issues as skin permeation, enhancement, and assessment. Part Two, Topical and Transdermal Product Development, guides readers through the complete product development process from concept to approval, offering practical tips and cautions from experts in the field. This part also discusses regulations that are specific to the development of dermal drug products. The final chapter explores current and future trends, forecasting new development techniques and therapeutics. Throughout the book, the authors clearly set forth the basic science and experimental procedures, making it possible for researchers to design their own experimental approaches and accurately interpret their results. With contributions from experienced drug researchers, this text is highly recommended for all researchers involved in topical and transdermal product development who need to know both the state of the science and the standards of practice.
Download or read book Percutaneous Penetration Enhancers Physical Methods in Penetration Enhancement written by Nina Dragicevic and published by Springer. This book was released on 2017-05-04 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Percutaneous Penetration Enhancers in a mini-series format comprising five volumes, represents the most comprehensive reference on enhancement methods – both well established and recently introduced – in the field of dermal/transdermal drug delivery. In detail the broad range of both chemical and physical methods used to enhance the skin delivery of drugs is described. All aspects of drug delivery and measurement of penetration are covered, and the latest findings are provided on skin structure and function, mathematics in skin permeation, and modern analytical techniques adapted to assess and measure penetration. In offering a detailed description of the methods currently in use for penetration enhancement, this book will be of value for researchers, pharmaceutical scientists, practitioners, and also students.
